Recent analysis suggests that Mars may be home to water-carved caves, potentially formed by ancient water flows. These ...

Scientists have recovered ancient molecules of RNA from a juvenile mammoth named Yuka, who died 40,000 years ago in what is now Siberia. These biological remnants are providing insight into the last ...

A recently discovered impact crater in China is among the best-preserved ever found, offering insight into how space rocks ...

The 165-foot rope rappel – California’s longest cave rappel – allows adventure seekers to descend from the top of the main chamber directly to the cavern floor. Dangling in the middle of this vast ...

Interstate State Park sits on the border of Minnesota and Wisconsin along the St. Croix River, proving that good scenery knows no state lines. The park’s most famous features are its potholes – deep ...